Physical properties measurement is an area that covers different spectrophotometric and electrochemical methods. The most common measurement parameters include conductivity, pH, dissolved oxygen concentration (DO), redox-potential (ORP), total dissolved solids (TDS), salinity and turbidity.

The physical properties measurement system (PPMS) is specifically designed to represent a unique concept when it comes to laboratory equipment. It is an automated system ideal for measuring material properties such as magnetic AC and DC susceptibility, specific heat and others.

Today, we are here to look at the core working principle of the physical properties measurement system taking into consideration the DynaCool PPMS. Keep reading till the end to learn all about it.

Working Principle of DynaCool PPMS

This particular PPMS model is an ideal lab equipment that offers varied measuring capabilities of solid samples. There is no requirement for any liquid cryogens to carry out the measurements.

The system utilizes a singular, two-stage pulse tube cryocooler for temperature control and superconducting magnet system. This results in offering a low vibration, efficient environment for measuring samples.

Measurement Options Available

Resistivity

Using the four point measurement approach, the Physical Properties Measurement System is bundled with a voltmeter amplified to three channels and a current source that can establish the resistance of three samples that too quasi-simultaneously.

With the help of this system, the switch between one sample to another can be achieved cyclically and automatically numerous times per second. This option can be selected for determining magnetoresistance, Hall effect and resistivity of the material under observation. Operators can use sample rotators with this measurement option.

AC Transport

In order to produce alternating currents, the AC Transport can be opted and used which relies on waveform generator that are able to create driving signals. These signals are ultimately utilized by the current source for generating alternating currents.

The system’s hardware is multiplexed to two channels so two samples can be simultaneously measured at the same session.

ACMS

This option allows the Physical Properties Measurement System to function as a magnetometer. The option hardware enables it to perform the possibility of using the PPMS as AC susceptometer or DC extraction magnetometer.

Highlighting Features of DynaCool PPMS

The PPMS has several exceptional features that allows it to perform more than electrical measurements. Some of the highlighting features of PPMS DynaCool are –

·          2.6 cm diameter sealed sample chamber with convenient sample access.

·          Cryogen-free cooling technology.

·          Consistent low temperature control that enables to maintain temperature below 4.2K resulting in seamless temperature transitions.

·          Integrated visual basic interface for automatic external instruments control.

·          Grapher utility which displays data while simultaneously collecting data.

The DynaCool PPMS is an ideal solution for measuring types of materials coming in thin film, bulk or powder form provided the samples are small to fit within the chamber of the instrument.

To learn more about PPMS, get in touch with an expert now.